.main_middle
{
	margin:0 auto;
	width: 100%;
	height: 100%;
	FILTER: progid:DXImageTransform.Microsoft.Gradient(gradientType=0, startColorStr=#e8eff4, endColorStr=#f4f4f4); /*IE*/
	background: -moz-linear-gradient(top, #e8eff4, #f4f4f4); /*火狐*/ 
	background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#e8eff4), to(#f4f4f4)); /*谷歌*/ 
}
.main_middle_1
{
	margin:0 auto;
	position: absolute;
	top: 30px;
	left: 9.2%;
	width: 55.7%;
	min-width:752px;
	height: 280px;
	background: #ffffff;
}
.main_middle_2
{
	position: absolute;
	top: 30px;
	left: 65.7%;
	width:24.9%;
	min-width: 337px;
	height: 280px;
	background: #ffffff;
	margin:0 auto;
}
.main_middle_3
{
	position: absolute;
	top: 320px;
	left: 9.2%;
	width:55.7%;
	min-width: 752px;
	height: 220px;
	background: #ffffff;
	margin:0 auto;
}
.main_middle_4
{
	position: absolute;
	top: 550px;
	left: 9.2%;
	width:55.7%;
	min-width: 752px;
	height: 200px;
	background: #ffffff;
	margin:0 auto;
}
.main_middle_5
{
	position: absolute;
	top: 320px;
	left: 65.7%;
	width:24.9%;
	min-width: 337px;
	height: 430px;
	background: #ffffff;
	margin:0 auto;
}
li {list-style-type:none;}